from sys import argv
scriptname,filename = argv
print(f"We're going to erase {filename}")
print("If you don't want  that,hit CTRL-C(^c).")
print("If you do want that,hit ENTER.")
input("?")
print("Opening the file...")
target = open(filename,'w')
print("Truncating the file.Goodbye! ")
target.truncate()
print("Now I'm going to ask for three lines.")
line1 = input("line 1: ")
line2 = input("line 2: ")
line3 = input("line 3: ")

print("I'm going to write these to the file.")
target.write(line1)
target.write("\n")
target.write(line2)
target.write("\n")
target.write(line3)
target.write("\n")
print("And finally,we close it.")
target.close()
